This social media marketing update highlights one clear 2026 trend: fragmentation. Performance gaps between networks widened significantly this year. Brands now need sharper, more deliberate channel choices instead of a one-size-fits-all posting strategy.
TikTok Still Dominates Engagement
TikTok remains the strongest platform for brands. Median brand follower counts rose more than 200% year-over-year. Engagement rates peaked near 35.9% before settling around 27.6% by the end of 2025. That still beats every competitor by a wide margin.
Instagram tells a different story. Median engagement fell from 16.9% in early 2024 to just 9.7% by the end of 2025. Facebook, meanwhile, held remarkably steady. Engagement stayed between 1.4% and 2.4%, which reinforces its role as a predictable reach channel rather than an engagement driver.
X saw flat to negative audience growth. Its practical value now narrows mostly to real-time conversation and breaking news.
Content Format Drives Results Within Each Platform
Format choices matter more than ever. On Facebook, live video generates roughly four times the engagement of link posts. It generates six times the engagement of static images.
Instagram shows a similar pattern. Carousels and Reels outperform static images by about 44%. TikTok’s algorithm now drives most discovery too. Its For You feed accounts for more than 70% of video views. Traffic from follower pages and search keeps declining, which reduces the advantage that large-follower accounts used to hold.
Social Platforms Are Becoming Search Engines
Search behavior is shifting as well. Younger users increasingly treat TikTok and Instagram as discovery engines in their own right. This trend pushes brands to optimize content for in-app search, not just the feed algorithm.
What This Social Media Marketing Update Means for Your Strategy
Stop treating your channels as interchangeable. Does your audience actually engage on TikTok? Invest your best creative there instead of spreading it evenly across platforms.
On Instagram, prioritize Reels and carousels over static posts. If Facebook remains part of your mix, lean into it as a reach-and-retarget tool rather than an engagement play.